Measuring device for calibrating high-speed railway track measuring instrument

Abstract

The invention relates to a measuring device for calibrating a high-speed railway track measuring instrument. The smoothness detection on a railway track mostly adopts a mode of using a track geometrical state measuring instrument, and after the long-period use, the measuring precision can be reduced, so that a standard calibrating device is needed for carrying out timed and regular calibration on the measuring instrument. The measuring device comprises a welding base, a superelevation calibrating module, a casting structure crossbeam and a track gauge calibrating module from bottom to top, wherein the casting structure crossbeam is vertical to the alignment, the superelevation calibrating module determines the moving of the casting structure crossbeam through reading the radian block rotation distance, and the track gauge calibrating module can calibrate the alignment, the height and the track gauge. The measuring device has the advantages that the alignment, the track gauge, the height and the superelevation of the track measuring instrument can realize the timed and regular calibration, the structure is reasonable, the operation is simple, the measurement errors of the track measuring instrument due to the long-period use in the field operation process are avoided, and the measurement accuracy of the track measuring instrument is improved.

Description

technical field [0001] The invention belongs to the technical field of railway measurement, and in particular relates to a measuring device for verifying a track measuring instrument of a high-speed railway. Background technique [0002] The smoothness of the railway track refers to the ups and downs and left-right deviation of the track due to the long-term operation of the train on the track and the change of the track subgrade, which affects the normal running of the train. With the continuous improvement of train speed, in order to achieve the safety and comfort of train operation, especially the smoothness of high-speed railway tracks directly affects the safety and stability of high-speed trains, the design and construction of lines must achieve high smoothness, The railway department has higher and higher requirements on the parameters of the railway irregularity state, so the detection and maintenance of the track smoothness is particularly important. [0003] At p...

AI Technical Summary

Problems solved by technology

[0003] At present, the detection of railway track smoothness is mostly carried out by means of a track geometric state measuring instrument. However, this measuring instrument needs to be adjusted for applicability when testing ballasted tracks, ballastless tracks, subways, light rails, etc., and has been used for a long time. It will also affect its measurement accuracy. Therefore, a standard verification device is required to regularly verify the measuring instrument to ensure its reliability and accuracy in the field measurement process.

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